A Study on the Face Recognition based on the Face Geometrical Characteristics

Dadong Zhao,Jeong-Young Song 한국정보기술학회 2010 Proceedings of KIIT Conference Vol.2010 No.-

This paper has analyzed face characteristics and designed the face features, then it extracts the features and constructed the feature values, and at last, it realizes face recognition through matching of similarity of the feature values. According to the obvious difference of the five sense organs in color, using rgb color space to analyze the distribution range of the five sense organs, and in accordance with the statistical results, the five sense organs in the face are segmented and geometrical parameters of the relevant facial parts are obtained. Construction face feature values with the feature values formed with the proportion of these parameters. Face recognition is to match the feature values. As the extracted feature values have different stability and contribution to the recognition, this paper grants different coefficients to the components, and then uses weighted similarity calculation method to work out the similarity value. Finally, this paper set the maximum similarity matching as the basis for face recognition. For the selection of feature components, we have comprehensively considered the overall features and partial features of face and combined the face shape features and the features of the five sense organs. The experiment shows that these features can reflect the individual features of human face, which can be treated as an effective basis for face recognition, thus to realize face recognition.

Polyamidoxime functionalized with phosphate groups by plasma technique for effective U(VI) adsorption

Dadong Shao,Xiaolin Wang,Xuemei Ren,Sheng Hu,Jun Wen,Zhaoyi Tan,Jie Xiong,Abdullah M. Asiri,Hadi M. Marwani 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.67 No.-

Finding poly(amidoxime) (PAO) based adsorbent with better performance in U(VI) extraction from seawater is a hot research topic. By employing plasma treatment, the bi-functionalized adsorbents containing amidoxime and phosphate (labelled as PO4/PAO) were successfully synthesized. The obtained PO4/PAO was characterized and applied for the potential extraction of U(VI) from aqueous solution. The results show that −PO4 enhanced the hydrophilicity of PAO. PO4/PAO possesses good selective sorption ability for U(VI) and excellent reusability. The findings is helpful to understand optimizing performance of PAO based adsorbents for uranium extraction from seawater.

A Study on the Face Recognition and Facial Expression Recognition based on the Face Geometrical Characteristics

Dadong Zhao,Jeong-Young Song 한국정보기술학회 2010 한국정보기술학회논문지 Vol.8 No.8

The paper is face recognition and facial expression recognition based on the face geometrical characteristics. In face recognition stages, this paper has analyzed face characteristics and designed the face features, then it extracts the features and constructed the feature values, and at last, it realizes face recognition through matching of similarity of the feature values, for the selection of feature components, we have comprehensively considered the overall features and partial features of face, the face recognition experiment shows that these features can reflect the individual features of human face, which can be treated as an effective basis for face recognition, thus to realize face recognition; in facial expression recognition stages, mouth plays a key role in expressing emotions, in this paper the features is mainly based on the shapes of mouth, followed by eyes and eyebrows. This paper makes its efforts to disperse every feature values via the weighting function and proposes method of expression classification with excellent classification effects; the final recognition model has been constructed.

The Facial Expression Recognition using the Inclined Face Geometrical Information

Dadong Zhao,Mousavinezhad, S. Hossein,Jeong-Young Song 한국정보기술학회 2012 한국정보기술학회논문지 Vol.10 No.12

Facial expression recognition, it is a research field that an important research areas of pattern recognition. Typically, we can see that peoples emotions through facial expression recognition. In this study, to recognize facial expressions, we use the geometric features of the face such as the shape of the mouth, eyes and eyebrows. About some peoples emotions from facial expressions, we can find the surprise, smile, angry and natural face. We use the ratio of mouth shape, eyes shape, brow angle and eyebrows shape as a features parameters. we have made recognition system. To evaluate the performance, we are 200 data preparation, experimental results show that 83% of the results were obtained. In the future, facial expression recognition algorithm that can be used for identification systems, robot and avatars.

Influence of maternal and socioeconomic factors on breast milk fatty acid composition in urban, low‐income families

Nayak, Uma,Kanungo, Suman,Zhang, Dadong,Ross Colgate, E.,Carmolli, Marya P.,Dey, Ayan,Alam, Masud,Manna, Byomkesh,Nandy, Ranjan Kumar,Kim, Deok Ryun,Paul, Dilip Kumar,Choudhury, Saugato,Sahoo, Sushama John Wiley and Sons Inc. 2017 Maternal & child nutrition Vol.13 No.4

<P><B>Abstract</B></P><P>The lipid composition of breast milk may have a significant impact on early infant growth and cognitive development. Comprehensive breast milk data is lacking from low‐income populations in the Indian subcontinent impeding assessment of deficiencies and limiting development of maternal nutritional interventions. A single breast milk specimen was collected within 6 weeks postpartum from two low‐income maternal cohorts of exclusively breastfed infants, from Dhaka, Bangladesh (<I>n</I> = 683) and Kolkata, India (<I>n</I> = 372) and assayed for percentage composition of 26 fatty acids. Mature milk (>15 days) in Dhaka (<I>n</I> = 99) compared to Kolkata (<I>n</I> = 372) was higher in total saturated fatty acid (SFA; mean 48% vs. 44%) and disproportionately lower in ω3‐polyunsaturated fatty acid (PUFA), hence the ω6‐ and ω3‐PUFA ratio in Dhaka were almost double the value in Kolkata. In both sites, after adjusting for days of lactation, increased maternal education was associated with decreased SFA and PUFA, and increasing birth order or total pregnancies was associated with decreasing ω6‐PUFA or ω3‐PUFA by a factor of 0.95 for each birth and pregnancy. In Dhaka, household prosperity was associated with decreased SFA and PUFA and increased ω6‐ and ω3‐PUFA. Maternal height was associated with increased SFA and PUFA in Kolkata (1% increase per 1 cm), but body mass index showed no independent association with either ratio in either cohort. In summary, the socioeconomic factors of maternal education and household prosperity were associated with breast milk composition, although prosperity may only be important in higher cost of living communities. Associated maternal biological factors were height and infant birth order, but not adiposity. Further study is needed to elucidate the underlying mechanisms of these effects.</P>

Removal of U(VI) from aqueous solution using carboxymethyl cellulose-modified Ca-rectorite hybrid composites

Xinghao Liu,Shuheng Hu,Di Xu,Dadong Shao 한국화학공학회 2020 Korean Journal of Chemical Engineering Vol.37 No.5

Uranium (VI), as a toxic contaminant, is a potential detriment to human health and environmental safety. In this experiment, carboxymethyl cellulose/Ca-rectorite composite material (Ca-REC/CMC) was prepared by crosslinking reaction to remove U(VI) from the liquid. The crystal structure was detected by X-ray diffraction (XRD) and surface structure and morphology of the materials were investigated by scanning electron microscopy (SEM). The surface functional groups of prepared materials were detected by Fourier transform infrared spectroscopy (FT-IR). The adsorption capacity of Ca-REC/CMC improved obviously after being modified by CMC. The adsorption capacity of Ca-REC/CMC was closely related to ionic strength and pH. According to thermodynamic parameter calculation, the adsorption process was endothermic and spontaneous. Adsorption isotherms could be depicted perfectly by the Langmuir model. Ca-REC/CMC maintained stability and regeneration after recycling six times. The adsorption mechanism, including electrostatic interactions and ionic interaction, was investigated by the X-ray photoelectron spectroscopy (XPS). Ca-REC/CMC is considered as remarkable potential material for removing U(VI) from the water environment.